DBY Pneumatic Diaphragm Pump (Second Generation)Detailed product description：

1、 Product Overview

The QBY pneumatic diaphragm pump (second generation) has formed a series of production. The QBY series pneumatic diaphragm pump is a new type of conveying machinery and currently the most innovative pump in China. Using compressed air as the power source, it can extract and absorb various corrosive liquids, particulate liquids, high viscosity, volatile, flammable, and highly toxic liquids. Its performance parameters are similar to WLLDENPVMPS from the Federal Republic of Germany and MARIOWPUMPS from the United States. There are 12 specifications of diameter: Φ 10 mm（ 3 / 8 〃）、 ∮ 15mm（ 1 / 2 〃）、 ∮ 25 mm（1〃）、 ∮ 40mm（1 1 / 2 〃）、 ∮ 50mm（2〃）、 ∧ 65 (2 1/2 ″), ∧ 80 (3 ″), and ∧ 100 (4 ″). Four materials: aluminum alloy, cast iron, stainless steel, and polypropylene. Diaphragm pumps use materials such as nitrile rubber, chloroprene rubber, fluororubber, polytetrafluoroethylene, and polytetrafluoroethylene (F46) according to different liquid media to meet the needs of different users. This pump has been adopted by over a thousand domestic units in the petroleum, chemical, electronic, ceramic, and textile industries. It is installed in various special occasions to pump media that cannot be pumped by conventional pumps, and has achieved satisfactory results.

3、 Product Usage

1. No need for irrigation, with a suction height of up to 7m, a lift of 50m, and an outlet pressure of ≥ 6kgf/c ㎡. The QBY pneumatic diaphragm pump has a wide flow barrier and good performance, allowing it to pump flowing liquids and transport some non flowing media. It has many advantages over conveying machinery such as self-priming pumps, submersible pumps, shielded pumps, mud pumps, and impurity pumps. When pumping mud and impurities with a diameter of 10mm, the maximum particle has minimal wear on the pump. 3. The head and flow can be infinitely adjusted through the opening of the air valve. (Adjust the air pressure between 1-7kg/c ㎡). 4. The pump has no rotating parts and no shaft seal diaphragm to separate the pumped medium from the moving parts of the pump. The working medium is completely separated, and the conveyed medium will not leak outward. So when pumping toxic, volatile or corrosive media, it will not cause environmental pollution and endanger personal safety. 5. No need for electricity, safe and reliable use in flammable and explosive places. 6. Can work submerged in a medium. 7. Easy to use, reliable in operation, the pump can be started and stopped simply by opening and closing the gas valve. Even if it runs without medium for a long time or suddenly stops due to unexpected situations, the pump will not be damaged. Once overloaded, the pump will automatically stop, with self-protection performance. When the load returns to normal, it can start running automatically again. 8. The pump has a simple structure and few vulnerable parts. It is easy to install and maintain, and the medium transported by the pump will not come into contact with moving parts such as the valve and connecting rod. Unlike other types of pumps, the performance gradually decreases due to wear and tear of components such as rotors, pistons, gears, and blades. 9. Can transport viscous liquids. (Viscosity below 10000 centipoise) 10. This pump does not require oil lubrication and has no effect on the pump even when idling. This is a major feature of the pump.
4、 Model meaning

Flow Q: 0.8~30 m3/h Head H: 0~50m Maximum allowable particle diameter D: 1~10mm

5、 QBY Pneumatic Diaphragm Pump (Second Generation) Performance Parameters

DBY Pneumatic Diaphragm Pump (Cast Iron)
model	traffic	head	suction lift	caliber	Maximum allowable particle passage	Maximum gas supply pressure
QBY-10	0-0.8	0-50	five	ten	one	4-7
QBY-15	0-1	0-50	five	fifteen	one	4-7
QBY-20	0-1.8	0-50	seven	twenty	two point five	2-7
QBY-25	0-2.4	0-50	seven	twenty-five	two point five	2-7
QBY-32	0-5.6	0-50	seven	thirty-two	four point five	2-7
QBY-40	0-8	0-50	seven	forty	four point five	2-7
QBY-50	0-12	0-50	seven	fifty	eight	2-7
QBY-65	0-18	0-50	seven	sixty-five	eight	2-7
QBY-80	0-24	0-50	seven	eighty	ten	2-7
QBY-100	0-30	0-50	seven	one hundred	ten	2-7